He tried to varnish over the facts, but it was useless.

他想粉饰事实，但那是徒劳的。

《新英汉大辞典》

He tried to varnish over the truth with a lie.

他试图用谎言来掩盖真相。

youdao

Furthermore, the designs were covered with "desert varnish", a glaze that develops on rock surfaces over thousands of years of exposure to the elements.

此外，这些设计还覆盖有“沙漠清漆”，一种在岩石表面经过数千年在这些元素暴露下而形成的釉料。

youdao

Glenys Pearl has just spilled a bottle of purple nail varnish all over the bed and Johnny has been screaming for his lunch.

BBC: Cerys Matthews

Tests carried out in 2004 on the boards of this room dating back to the 1830s revealed the original surface beneath grime, discolored varnish and the repainting done by maintenance staff over fifty years ago.

FORBES: The Work of Undoing the Past